Name each of the following triangles in two different ways: (you may judge the nature of the angle by observation)

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Solution

Solution :- given
(a) REF.Image
$\Rightarrow$ Acute triangle
$\to$ as every angle less than $90^{\circ}$
$\Rightarrow$ Isosceles triangle
$\to$ as Two sides and Two angles same

(b) REF.Image
$\Rightarrow$ Right angle triangle
$\to$ as one angle is $90^{\circ}$
$\Rightarrow$ Scalene triangle
$\to$ as all sides of different length

(c) REF.Image
$\Rightarrow$ Obtuse triangle
$\to$ as one angle is more than $90^{\circ}$
$\Rightarrow$ Isosceles triangle
$\to$ as 2 sides equal

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